FAAC 844 MC-T Manual Download

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ENGLISH

This control unit can be installed in boxes E, L and LM. Before
securing the card in the box, fit the supplied support feet (long
for mod. E, short for models L and LM) in the 3 S-holes (Fig.20).

5.1.1. 844 T ELECTRONIC CONTROL UNIT

TABLE 2

844 T TECHNICAL SPECIFICATIONS

Power supply

400V 3ph+N (+6 -10 %) 50Hz

Motor max load

950 W

Accessories power supply

2 4 V d c

Accessories max load

500 mA

Warning light power supply

24V~ (5W max)

A m b i e n t t e m p e r a t u r e r a n g e

- 20°C + 55°C

Fuses

transformer primary winding

accessories

Quick-fit plugs

- for decoding cards or RP receivers -

Inputs

OPEN/PART OPEN/STOP/CLOSURE SAFETY DEVICES/

LIMIT-SENSORS

warning light

Outputs

flashing light

m o t o r

24Vdc accessories power supply

pause time (5-10-15-30-60-120-180 sec.)

Fig. 19

TF1

RL7

RL6

RL8

SW1

DS1

A B STOP FSW FCC FCA

LK1

SW1

Led

LK1

RL6

RL8

RL7

DS1

4.4.2. STEEL RACK TO BE BOLTED (Fig. 15)

1) Manually place the leaf in closed

position.

2) Rest the first section of the rack

level on the pinion gear and insert
the spacer between the rack and
the gate, locating it in the upper
part of the slot.

3) Mark the drilling point on the gate.

Drill Ø 6.5 mm. and tap with a Ø 8
mm. taps. Tighten the bolt.

4) Move the gate by hand, checking whether the rack rests on

the pinion and repeat operations at point 3.

5) Position another rack element next to the previous one, using

a section of rack as in Fig. 17.

6) Move the gate by hand and execute the securing operations

as done for the first element, carrying on until you have
covered the entire gate.

Fig. 15

Fig. 16

Fig. 17

Notes on the rack

•

As the gate moves, make sure that no rack elements lose
contact with the pinion.

•

Do not, repeat do not, weld the rack elements either to the
spacer or to each other.

•

After installing the rack, to ensure correct meshing with the
pinion gear, we advise you to lower the position of the
gearmotor by approximately 1.5 mm
(Fig.18).

•

Manually check that the gate
reaches the mechanical limit stops
correctly, and that there is no fric-
tion during travel.

•

Do not apply grease or other lubri-
cants between rack and pinion.

5. START-UP

5.1. CONNECTION TO ELECTRONIC CONTROL UNIT

Before attempting any work on the control unit (connections,

programming, maintenance), always turn off power supply.

Observe points 10, 11, 12, 13 and 14 of the GENERAL SAFETY
OBLIGATIONS.
Observing the instructions in Fig.3, lay the raceways and make
the electrical connections of the 844 T electronic unit to the
selected accessories.
Always separate power cables from control and safety cables
(push-button receiver, photocells, etc.). To prevent any electronic
noise whatever, use separate sheaths.

Fig. 18

Programming

logics A1/A2/S1/S2/E1/E2/B/C

pre-flashing

Motor braking

fixed

Safety timing

255 sec.

5.1.2. 844 T LAY-OUT

1.5

TABLE 3

844 T CONTROL UNIT COMPONENTS